Liquid dividing feed mechanism



April 18,1939. A. VON WANGENHEIM sf AL 2,155,368

LIQUID DIVIDING FEED MECHANISM Filed May 14, 1934 4 Sheets-Sheet 4ATTORNEYS April 18, 1939. A. yoN WANGENHEIM ET AL 2,155,368

LIQUID DIVIDING FEED MECHANISM ATTORNEYS April 18, 1939. A. VONWANGENHEIM' El AL 2155,7363

' I LIQUID DIVIDING FEED MECHANISM Filed May 14, 1934 4 Shets-Sheet 5 7mvENToR'g fl do 2/ 757? M72 tniez'm W22 .lzer' 5.1471 022 ATTORNEYS A.VON WANGENHEIM ET AL April 1 1939.

LIQUID mvmme FEED mncmmsm 4 Sheets-Sheet 4 Filed May 14, 1934.

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ATTORNEYS j-Patonted A... 15,1939

' rlIQUm nrvmnvc FEED MECHANISM Adolf v on Wangenheim and Walter S.Landon. Detroit, Mich, assignors to Detroit Lubricator Company, Detroit,Micln, a corporation of Michigan Application May 14, 1934. Serial No.725,684 2 Claims. (01. 184-1) The invention relates to liquid feedingmechanisms. more particularly designed for use in connection withlubricating systems and it is the obiect of the invention to accuratelydivide the liq- 3 uid which is being fed into a plurality of accuratelymeasured portions and to deliver the same to separate conduits. Tothisend the invention;

consists in the construction as hereinafter se forth. a In the drawings:

Fig. 1 is a plan view ofthe device;

Fig.2 is a side elevation thereof; Fig. 3 is an end elevation; Fig. 4 isa cross section on line 44 of Fig. 1

viewed in the direction of the arrow;

Fig 5 is a similar view viewed in the opposite direction as indicated bythe arrows 5--5, Fig. 1;

Flgs. 6, 7, 8 and 9 are diagrammatic views illus-' trating thesuccessive operations in measuring, dividing and feeding the liquid tothe separate delivery conduits;

Figs. 10, 11, 12, 13, 14 and 15 are elevations re spectively of the sixsides of the casing;

Figs. 16, 17, 1a, 19, 20,21, 22 and 23 are cross I 35 sections taken onlines of corresponding number in theelevationaFigs. 10 to 15. v

Fig. 24 is a diagram illustrating a plurality of dividing units used incombination.

Generally described, our improvement comprises a casing preferablyformed of an integral casting which is provided with an inlet for theliquid to be divided and a plurality of outlets for the divided portionsof the liquid. Intermediate said inlet and outlets the casing is furtherprovided with a plurality of cylindrical recesses, each containing areciprocatory plunger which functions as a double-headed'piston and avalve. The casing is further provided with ports. and passages soarranged that in one position of each plunger 40 the valve portionthereof will connect the cylinder for another plunger with one end tothe inlet and its opposite end to one of the outlets. This will resultin the movement of the plunger in the latter cylinder by pressure or theincoming fluid, which 5 in turn will'cause the expulsion of fluid fromthe opposite end of Y the cylinder through the connected outlet. Theshifting of this last plunger will cause the valve portion thereof tochange the connections to the'cylinder for the first mentioned plungerso that this in turn will be actuated, fluid being admitted at one endof the cylinder and expelled from its opposite end through anotheroutlet. As each plunger is a double acting piston, it is evident thatthe fluid can be divided into portions which are twice the number of thecaps I. J andH,

plungers and by increasing the number of plungers, any desired number ofdivisions may be made.

In detail, A is the casing formed of the integral casting having' on oneend thereof the internally threaded hollow boss B for connection withthe 5 inlet conduit C and also having upon opposite sides. theinternally threaded hollow bosses D, D,

E, E for connection with the outlet conduits F, F,

' I", F G and H are cylindrical bores extending through the centralportion of the casing interu, mediate the inlet and outlet connections,the opposite ends of which are closed by threaded plug are double-headedpiston plungers slidably fitting the bores G and H, these being 1 of alength less than the length of the cylinder l5 between opposite end capsI so as to produce a predetermined displacement by the reciprocationthereof. Between the opposite ends of each of these plungers are groovesJ', J, J and K, K, K which in certain positions of the plungers will 20register with cooperating ports in the walls of the cylinders. Theseportsv and connecting passages are preferably formed by intersectingbores, some of which enter from the outer surface of the casing and havetheir outer ends closed by plugs and '25 some of which enter through thehollow bosses D, D, E, E. Thus as shown in dotted lines, Fig. 1, andalso in the various cross sections thereof, there are a series of boresL extending radially at difl'erent angles through each of'the cylindersG 30 and H and a series of longitudinal bores M intersecting withcertain of said radial bores.

The arrangement of the diil'erent ports and passages is diagrammaticallyillustrated in Figs. 6 to 9 which also show the diflerent positions of35 the plungers J and K during the,cycle. Thus in Fig. 6 .both plungersJ and K are at the lower ends oi their respective cylinders in whichposition a radial bore C connected with the inlet C and intersectingboth cylinders'G and H is in communi- 4o cation with the'channels K andJ of the respective plungers. In this same position a radial port G inthe cylinder G is also in communication with the channel 'J and thlsportis connected through the channel M' to the radial port H" at the lowerend ofthe cylinder H. In this same position the channel J in the plungerJ communicates with a radial portG? which is con-' nected by the channelW with'a radial port H x which will displace fluid in the upper end ofthe cylinder H and expel it through the outlet 1''. Fig. 7 shows theposition of the parts after the upward movement of the plunger K and itwill be noted that in this position the channel K? is still incommunication with the passage C and also communicates with a radialport H connectedbythepassagew with-aradial portG atthe lower end of thecylinder G. The upper end of this cylinder is in communication with aradial port (it connected by a channel M with a radial port H which isin communication with the chan--' nel K. in 'the plunger K. This channelK also communicates with a radial port H leading to the outlet F. Thusthe fluid from the inlet'Cl will passto the lower end of the cylinder G,raising the piston J and'expelling fluid from the upper end of thecylinder G to the outlet F. Fig. 8

shows the position oi parts after this movement in which the inlet C isstill in communication through the passage C with the channels K and J'.The channel J is also in communication with a radial port G which asbefore described is connected by the channel M with the radial port H atthe upper end of thecylinder H. As before described, the lower end ofthe cylinder H communicates with the radial port H connected by a thechannel M with the radial port G, but this port G is now incommunication with the channel J which also registers with the radialport G leading to the outlet F. Thus fluid fromthe inlet C will pass tothe upper end of the cylinder H forcing the plunger K downward andexpelling fluid from the lower end-of this cylinder H to the outlet FFinally, in Fig. 9 the parts are in the position after the movement ofthe plunger K just described in which position the passage C is incommunication with a channel K which registers with the radial port Hconnected by the M and radial port (3 with the-upper end of the cylinderG. The lower end of this cylinder is also 7 again connected through theradial port G and passage M to the radial port H but this port H is nowin communication with the channel K which'registers with the radial portH connected with the outlet F. This permits of movement of the plunger Jback into the position shown in Fig. 6 and during such movement theexpulsion of fluid from the lower end of the cylinder G to the outlet F.

It will be understood that during operation all of the ports andpassages are fllled with fluid but to avoidconfusion we have indicatedin the diagrammatic views only the fluid which is in N located in aradial bore L between the cylinders G and H. The plungers J'and K arealso provided with pairs of annular grooves J J These are so locatedthat when the plunger is. at one end of its movement, one of the groovesof the pair will register with the bore L? and when the plunger is atthe opposite end of its movement the other of said grooves will soregister.

forced into the registering groove of the station- 'I'he pin N is ofsuch length as to be ary plunger when, displaced from the groove ofpistons.

amazes the moving plunger and thus during the entire movement of thelatter it will serve as a lock for holding the stationary plunger fromany movement. However, at the completion of travel of the movingplunger, the second groove of thepairwillberegisteredwiththepinNsoas-to" permit of the locking of thisplunger by the initial movement of the other plunger.

To facilitate manufacture, the casing A is provided with additionalbosses through which bores are made and having their outer facessubstantially perpendicular to the direction of the re spective bores.These are shown in'the several cross sections as follows: In Fig.-16 0and O'- are arranged for the entrance of bores L, L

respectively intersecting the cylinders G and H at angles; oi"substantially 30 to the common plane of said cylinders. These bores formrespectively the ports G and H which intersect with the longitudinalbores M, M. In Fig. 17'

is shown a bore L in the common plane of the cylinders G and H and whichas before described holds the pin N forming the interlock between InFig. 18 the ports Gland 1-1 are bored respectively through the hollowbosses D and D to connect the cylinders G and H with the outlets F andF. In Fig. 19 bores Land L respectively form the ports G and Hconnecting with the longitudinal bores M and M. In Fig. 20 the bore Centers from the hollow boss B to connect both cylinders G and H with theinlet C. In Fig. 21 the bore L in thecommon plane of the two cylindersforms the port G which connects the cylinder G with the iongitudinalboreM. Also, the bore L" forms the port 11- which connects the cylinderH with the longitudinal bore W. In Fig. 22 the 'ports G and H are boredthrough the hollow bosses E and E to connect the cylinders G and Hrespectively with the outlets F and F. In Fig. 23 bores U and L form theports G and H respectively connecting the cylinder G to the longitudinalbore M and the cylinder H to the longitudinal bore M All of the radialbores which enter the casing from the outside thereof have their outerends closed by screw plugs L For convenience in mounting, the casing Ais provided with a projection P. on one side thereof which has a bore Ptherethrough for engagemerit with any suitable supporting member.

While we have described specifically only two plungers operating in twocylinders, it is obvious that any number of cylinders and plungers, notless than two. can be used, the operation being essentially the same.

For certain uses it may be desirable to employ a plurality of dividingrunitsused either in multiple or in series. Fig; 24 shows a seriesarrangement in which one unit Q has a liquid inlet Q and a'plurality ofoutlets Q; One of theseoutlets forms the inlet for a second unit R whichalso has a plurality of outletsR'. With this arrangement there will be alonger interval between successive discharges through the outlets R thanbetween successive discharges through the outlets Q which may beadvantageous for certain uses For example, it will be seen that liquid-will not be injected to the second unit until liquid is discharged fromthe outlet of the first device which is connected to the inlet of thesecond device. Or in other words, in the embodiment shown, liquid willbe discharged from'the second unit once every four times, it isdischarged from the first unit, and from the 7 third unit once everysixteen times liquid is disoneness charged from the first unit, and soon for the remainder oi the units. From the above it will be seen thatthe time rate operation of successive units is governed by the operationof the g pistons of the preceding unit.

What we claim as our invention is:

1. Liquid dividing means comprising a plurality of units, each unitconsisting of a casing having a fluid inlet and a plurality of fluidoutlet pas-' sages, a plurality of cylinders and interconnectingpassages and a reciprocatory piston in each cylinder actuated by theincoming fluid and ejecting a measured quantity of outgoing fluid, andvalve means operable by each piston for con- 1 trolling and directingboth the admission and ejection of fluid of another cylinder, one ofsaid units being arranged in series with another unit and receiving itsfluid from one of the outlets oi the latter.

2. A multiple liquid dividing feed system comprising a first unit havingan inlet and a pinrality of outlets and having piston means operable byliquid delivered to said inlet under pressure for electing a measuredquantity of liquid as from first one and then another of its outlets,

asecond dividing unit having an inlet and a plurality of outlets andhaving piston means operable to elect a measured quantity 0! liquid fromfirst one and then another of its outlets, conduit means connecting oneof the outlets of said firstnamed unit with the inlet or saidsecond-named unit so that liquid ejected from said one outlet operatesto actuate the piston means of said second-named unit whereby the secondunit is operated once every cycle of operation of said first-named unit.

3. A multiple liquid dividing feed system comprising a plurality ofconnected dividing units including a first unit having an inlet and aplurality oi outlets and having piston means operable by liquiddelivered to said inlet under pressure for ejecting a measured quantity0! liquid from first one and then another of said outlets, each of theremainder of said units having an inlet and a plurality oi outlets andhaving piston means operable by liquid injected into said units fromsaid first unit to discharge a measured quantity of liquid first fromone and then another oi its outlets, and conduit means connecting saidunits.

4. A multiple liquid dividing feed system comprising a plurality ofconnected dividing units including a first unit having an inlet to whichliquid is delivered under pressure from a source of supply and having aplurality of outlets from which liquid is elected in sequence by pistonmeans, each oi the remainder oi said units having an inlet and aplurality of outlets with pistons operable by injection of liquid from apreceding unit for electing a measured quantity of liquid in sequencefrom its outlets, and conduit means connecting an outlet of one or saidunits to an inlet of another of said units whereby the pistons 01successive units will be actuated at a time period governed by theoperational the piston 01 the preceding unit.

6. Ina liquiddividingmeans, acasinghsving a plurality of combinedpumpfiig and driving elements comprising two pairs oi piston receivingcylinders and a piston in each cylinder, means connecting the pistons ineach pair of cylinders for movement in unison, each of said elementshaving a conduit portion serving both as means for feeding liquidthereto to. drive its piston and as means for discharging liquidthereirom, means to supply liquid to said conduit portions, valve meanscontrolling the feeding oi. liquid to and the discharge of liquid fromeach of said conduit portions so that said pistons act sequentially asdriving and as pumping means, and locking means external of said supplymeans and said conduit portions and cooperable with said elements toassure sequential operation of said pistons.

6. In a liquid dividing means, a casing having a plurality of combinedpumping and driving elements comprising two pairs of piston receivingcylinders and a piston in each cylinder, means connecting the pistons ineach pair of cylinders for movement in unison, each of saidelementshaving a conduit portion serving both as means for feedingliquid thereto to drive its piston and as means for discharging liquidtherefrom, means 'to supply liquid to said conduit portions, valvepistons thereby to assure sequential operation of said pistons.

7. In a liquid dividing means, a casing having a plurality 01' combinedpumping and driving elements comprising two parallel pairs of pistonreceiving cylinders and a piston in each cylinder, means connecting thepistons in each pair oi cylinders for movement in unison, each of saidelements having a conduit portion serving both as means for feedingliquid thereto to drive its piston and as means for discharging liquidtherefrom, means to supply liquid to said conduit portions, valve meanscontrolling the feeding of liquid to'and the discharge of liquid fromeach 01' said conduit portions so that said pistons act sequentially asdriving and as pumping means, saidcasing having a guide bore Joining onecylinder oi one pair to one cylinder of the other pair, means closingsaid bore against flow of liquid therethrough, a locking pinreciprocally fitting said bore and of such length that when one of itsends is flush with the surface of one cylinder bore its other end willproject into the bore 01' said other cylinder, and a pair oflongitudinally spaced, locking grooves in each piston 01 said one and oisaid other cylinder to receive said pin, said pin being alternatelymoved by one piston to engage in a groove in the other piston thereby tolock said pistons alternately against movement.

ADOLl'." von WANGENHEIH.

WALTER B. LANDON.

